import {
  ExceptionFilter,
  Catch,
  ArgumentsHost,
  HttpException,
  Logger,
} from '@nestjs/common';
import { Request, Response } from 'express';

@Catch(HttpException) // What exception to catch
export class HttpExceptionFilter implements ExceptionFilter<HttpException> {
  constructor(private readonly logger: Logger) {}
  catch(exception: HttpException, host: ArgumentsHost) {
    const ctx = host.switchToHttp();
    const request: Request = ctx.getRequest();
    const response: Response = ctx.getResponse();
    const status = exception.getStatus();

    if (status >= 500) {
      this.logger.warn({
        method: request.method,
        url: request.url,
        message: exception.message,
      });
    }

    response.status(status).json({
      message: exception.message,
      statusCode: status,
    });
  }
}